The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 150-600mm F5-6.3 DG OS HSM S and the Tamron 16-300mm f3.5-6.3 II VC PZD for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is a crucial factor to consider when comparing two lenses. Sigma 150-600mm F5-6.3 DG OS HSM S is the longer of the two lenses at 290mm. The Tamron 16-300mm f3.5-6.3 II VC PZD with a length of 100mm, is 190mm shorter. Besides being longer, the Sigma 150-600mm F5-6.3 DG OS HSM S also has a larger diameter of 121mm compared to the Tamron 16-300mm f3.5-6.3 II VC PZD's 75mm diameter.
The weight of a lens is equally significant as its external dimensions, particularly if you intend to handhold your camera and lens combination for extended periods. Tamron 16-300mm f3.5-6.3 II VC PZD weighs 540g, 81% (2320g) lighter than the Sigma 150-600mm F5-6.3 DG OS HSM S's weight of 2860g.
Below you can find the dimension and weight table of the Telephoto Zoom Lenses in Canon EF Mount for size comparison purposes.
Super Telephoto Lenses in Canon EF Mount for Size Comparison
Filter Threads
The Sigma 150-600mm F5-6.3 DG OS HSM S has a filter size of 105mm whereas the Tamron 16-300mm f3.5-6.3 II VC PZD has a 67mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 105mm filters that we recommend you to consider for the Sigma 150-600mm F5-6.3 DG OS HSM S:
And these are the 67mm filters that we recommend for the Tamron 16-300mm f3.5-6.3 II VC PZD:
Lens Mounts
Both the Sigma 150-600mm F5-6.3 DG OS HSM S and the Tamron 16-300mm f3.5-6.3 II VC PZD has the same Canon EF lens mount. Some of the latest released cameras that are compatible with the Canon EF lenses are Blackmagic URSA 12K LF, Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K.
Sigma 150-600mm F5-6.3 DG OS HSM S is also available in the Nikon F (FX) and Sigma SA mounts.
Tamron 16-300mm f3.5-6.3 II VC PZD is also available in Nikon F (DX) and Sony Alpha mounts.
Focal Range
Sigma 150-600mm F5-6.3 DG OS HSM S has a focal range of 150-600mm and
4.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
240 - 960mm.
On the other hand, the Tamron 16-300mm f3.5-6.3 II VC PZD has a focal range of 16-300mm and 18.8X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 25.6-480mm when used on a APS-C / DX format camera.